The medication would be the controlled variable, the factor that remains constant.
An educated guess that is aslo posed as a tentative explanation is called a hypothesis.
Answer:
The concentration of a substance is the quantity of solute present in a given quantity of solution.
Im not for sure but i think its D if that helps any
Sensory nerve endings in the fingers include Meisnner's corpuscles, Pacinian corpuscles, free nerve endings, Merkel discs, and Ruffini endings.
